The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2003
Filed:
Aug. 28, 2000
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/556 ;
U.S. Cl.
CPC ...
G01N 2/556 ;
Abstract
A compact and inexpensive sensor sensitivity adjusting apparatus. The sensor sensitivity adjusting apparatus includes a sensor, a current supplying IC and a variable resistor. The current supplying IC has first and second fixed resistors connected in series between two terminals of a power supply, and an operational amplifier. The sensitivity of the sensor changes in accordance with the value of a drive current. The drive current is adjusted by changing the resistance of the variable resistor.